What is the slope of the line that passes through points (-4,9) and (6,12)

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?

How can you construct perpendicular lines and prove theorems about perpendicular lines

How do you write something in scientific notation?